M10 * 1.5 TO diameter 20 Hole.

jiunming · 发表于 2022-7-8 11:34:50

Hi..i am doing assignment for my autocad 2002..but i have difficulty with this "M10*1.5 TO diameter 20 HOLE" which used to describe 2 cyclinders in an object. Anyone can explain to me what does it means..Thanks for help

kencaz · 发表于 2022-7-8 12:04:59

Pitch is the angle it is leaning at. i.e. if a roof has a pitch of 20 degrees, it slopes up to the ridgeline at an angle of 20 degrees etc.

jiunming · 发表于 2022-7-8 12:34:48

Uhmm, not exactly in this case. Pitch is the distance from a point on the thread to the next same point on the thread. For a single thread it is also the lead, the distance the fastener would translate (advance) in one rotation.

This should be covered in a diagram in your textbook.
http://home.pct.edu/~jmather/content/CAD238/AutoCAD%202007%20Tutorial%204.pdf
see Figure 5 the 1.5mm distance from one turn of the helix to the next turn.

Organic · 发表于 2022-7-8 12:53:08

Thanks for helping:)

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